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https://github.com/bolero-MURAKAMI/Sprout.git
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119 lines
3.4 KiB
C++
119 lines
3.4 KiB
C++
#ifndef SPROUT_OPTIONAL_COMPARISON_HPP
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#define SPROUT_OPTIONAL_COMPARISON_HPP
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#include <sprout/config.hpp>
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#include <sprout/utility/compare_pointees.hpp>
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#include <sprout/optional/optional.hpp>
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#include <sprout/optional/nullopt.hpp>
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namespace sprout {
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//
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// operator==
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// operator!=
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// operator<
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// operator>
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// operator<=
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// operator>=
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//
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template<typename T>
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inline SPROUT_CONSTEXPR bool
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operator==(sprout::optional<T> const& lhs, sprout::optional<T> const& rhs) {
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return sprout::equal_pointees(lhs, rhs);
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}
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template<typename T>
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inline SPROUT_CONSTEXPR bool
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operator!=(sprout::optional<T> const& lhs, sprout::optional<T> const& rhs) {
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return !(lhs == rhs);
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}
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template<typename T>
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inline SPROUT_CONSTEXPR bool
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operator<(sprout::optional<T> const& lhs, sprout::optional<T> const& rhs) {
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return sprout::less_pointees(lhs, rhs);
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}
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template<typename T>
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inline SPROUT_CONSTEXPR bool
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operator>(sprout::optional<T> const& lhs, sprout::optional<T> const& rhs) {
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return rhs < lhs;
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}
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template<typename T>
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inline SPROUT_CONSTEXPR bool
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operator<=(sprout::optional<T> const& lhs, sprout::optional<T> const& rhs) {
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return !(rhs < lhs);
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}
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template<typename T>
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inline SPROUT_CONSTEXPR bool
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operator>=(sprout::optional<T> const& lhs, sprout::optional<T> const& rhs) {
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return !(lhs < rhs);
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}
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//
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// operator==
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// operator!=
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// operator<
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// operator>
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// operator<=
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// operator>=
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//
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template<typename T>
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inline SPROUT_CONSTEXPR bool
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operator==(sprout::optional<T> const& lhs, sprout::nullopt_t) SPROUT_NOEXCEPT {
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return !lhs;
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}
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template<typename T>
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inline SPROUT_CONSTEXPR bool
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operator==(sprout::nullopt_t, sprout::optional<T> const& rhs) SPROUT_NOEXCEPT {
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return !rhs;
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}
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template<typename T>
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inline SPROUT_CONSTEXPR bool
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operator!=(sprout::optional<T> const& lhs, sprout::nullopt_t) SPROUT_NOEXCEPT {
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return bool(lhs);
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}
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template<typename T>
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inline SPROUT_CONSTEXPR bool
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operator!=(sprout::nullopt_t, sprout::optional<T> const& rhs) SPROUT_NOEXCEPT {
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return bool(rhs);
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}
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template<typename T>
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inline SPROUT_CONSTEXPR bool
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operator<(sprout::optional<T> const& lhs, sprout::nullopt_t) SPROUT_NOEXCEPT {
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return false;
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}
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template<typename T>
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inline SPROUT_CONSTEXPR bool
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operator<(sprout::nullopt_t, sprout::optional<T> const& rhs) SPROUT_NOEXCEPT {
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return bool(rhs);
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}
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template<typename T>
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inline SPROUT_CONSTEXPR bool
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operator>(sprout::optional<T> const& lhs, sprout::nullopt_t) SPROUT_NOEXCEPT {
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return bool(lhs);
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}
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template<typename T>
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inline SPROUT_CONSTEXPR bool
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operator>(sprout::nullopt_t, sprout::optional<T> const& rhs) SPROUT_NOEXCEPT {
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return false;
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}
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template<typename T>
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inline SPROUT_CONSTEXPR bool
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operator<=(sprout::optional<T> const& lhs, sprout::nullopt_t) SPROUT_NOEXCEPT {
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return !lhs;
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}
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template<typename T>
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inline SPROUT_CONSTEXPR bool
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operator<=(sprout::nullopt_t, sprout::optional<T> const& rhs) SPROUT_NOEXCEPT {
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return true;
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}
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template<typename T>
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inline SPROUT_CONSTEXPR bool
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operator>=(sprout::optional<T> const& lhs, sprout::nullopt_t) SPROUT_NOEXCEPT {
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return true;
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}
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template<typename T>
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inline SPROUT_CONSTEXPR bool
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operator>=(sprout::nullopt_t, sprout::optional<T> const& rhs) SPROUT_NOEXCEPT {
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return !rhs;
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}
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} // namespace sprout
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#endif // #ifndef SPROUT_OPTIONAL_COMPARISON_HPP
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